Home / 15,350.77-21,182.57-8,636.26

Finding the Fourth Proportional to 15,350.77, 21,182.57 and 8,636.26

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Solution

The fourth proportional to 15,350.77, 21,182.57 and 8,636.26 is: 11,917.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,350.77 : 21,182.57 = 8,636.26 : x
  2. Step 2: Convert to fraction form
    15,350.77/21,182.57 = 8,636.26/x
  3. Step 3: Cross multiply
    15,350.77x = 21,182.57 × 8,636.26
  4. Step 4: Simplify right side
    15,350.77x = 182,938,032.89
  5. Step 5: Solve for x
    x = 182,938,032.89/15,350.77
  6. Step 6: Final answer
    x = 11,917.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.